Derrick Jones Jr. has made a huge defensive impact in his first season with the Dallas Mavericks Highlights Signing Derrick Jones Jr. was a key move to upgrade Dallas' defense for a playoff return. Jones faces the tough task of guarding the Clippers' star trio with no fear. Jones delivered a standout performance in game two, helping Dallas grind out a win with gritty defense. The Dallas Mavericks missed the NBA Playoffs altogether last year. After pairing Luka Dončić and Kyrie Irving in the backcourt, Dallas' defense fell off the table after the trade deadline. General manager, Nico Harrison, knew...